PURPOSE
Communication-Information Anchored, Emerging Radio Hydro Acoustic Buoy /CIAERHAB/ is designed to be used at depths up to 100 m in the marine environment with possibilities for:
- receiving, executing and/or retransmitting commands and information on a bidirectional radio, satellite (option) or hydro-acoustic channels;
- to emerge by predefined algorithm or after command via hydro-acoustic channel;
- to transmit the hydrological information gathered by its own sensors to the base (ship/shore) station, where the data are displayed and stored;
- CIAERHAB can be commanded from base (ship/shore) station;
- On it’s platform, various sensor systems could be installed.
The Hydro-acoustic Buoy Repeater /HABR/ can receive, execute and retransmit commands and information by hydro-acoustic channel from ship base station, from CIAERHAB and other underwater devices.
OPERATING
When the buoy is released from the vessel (ship), it rests in position at the bottom in the area of submersing in sleep mode up to 30 days (programmable).
After the wake-up (through a pre-programmed time or a command from ship) the underwater buoy starts executing a pre-programmed schedule.
During the buoy emerging the sensor system measures and stores the data from the sensors about pressure and temperature of the marine environment.
HABR stands at a depth where the hydro acoustic communication channel has maximum efficiency.
After the CIAERHAB surfacing the data must be transmitted to the base station (ship or shore) via the radio or satellite (option) module. After exchanging data with base station, by command or by programmer set-up time, the buoy begins to immerse at depth of 30-40 m and remains ready to use.
The periods between emergence and immersion of the buoys can be programmed (reprogrammed).
The CIAERHAB consist of:
- submersible self-moving buoy;
- anchor;
- base station (ship or shore).
The HABR consist of:
- submersible self-moving buoy;
- anchor;
Technical characteristics | |
---|---|
Operational depth | up to 100 m |
Weight | up to 260 kg with anchor |
Max sea waves | 2m |
Currents (underwater) | up to 3 knots |
Operational temperature | 0° to 40° deg. °C |
Initial wake up period | up to 30 days |
Operational period | 90 days |
Number of cycles per drop | 90 |
Number of drops(before refurbishment) | 3 to 5 |
Water properties logged | temperature, pressure |
Range of hydro acoustic communications | up to 4 km |
Range of radio communications | up to 50 km (LOS) |
Range of hydro acoustic communications of HABR | up to 4 km |